1203247991664 has 80 divisors (see below), whose sum is σ = 3565179274240. Its totient is φ = 388144509120.

The previous prime is 1203247991651. The next prime is 1203247991669. The reversal of 1203247991664 is 4661997423021.

1203247991664 is a `hidden beast` number, since 1 + 2 + 0 + 3 + 2 + 479 + 9 + 166 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 1203247991664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203247991669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44910742 + ... + 44937525.

It is an arithmetic number, because the mean of its divisors is an integer number (44564740928).

Almost surely, 2^{1203247991664} is an apocalyptic number.

It is an amenable number.

1203247991664 is an abundant number, since it is smaller than the sum of its proper divisors (2361931282576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1203247991664 is a wasteful number, since it uses less digits than its factorization.

1203247991664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89848315 (or 89848303 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 1203247991664 in words is "one trillion, two hundred three billion, two hundred forty-seven million, nine hundred ninety-one thousand, six hundred sixty-four".